Bearing for top-detaching rolls



Sept. 25, 1928.

W. P. HOMANS BEARING 1 0R TOP DETACHING ROLLS Filed June 8, 192

ATTQRNELE:

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Patented Sept. 25, 1928.

fnnrrs sms WILLIAM E. I-IOMANQOF 'oAnron. MASSACHUSETTS, assienon'ro lisAErIAN inh- CHINE wenxs, LIMITED, or recsron, MASSACHUSETTS, Aoonroim'riouor MAS- SACHUSETTS.

Application filed June 8,

My improvement relates more particularly .to the class of detaching''rolls described in Letters Patent of the United States, No. 1,546,763,granted to HQTunstall July '21, 1925. V v I Heretofore topdetaching-rolls such as are described in saidipatent have rotated ateach end within a bushing or sleeve the *fixing of the machine, thebearings are caused torest on the shoulder or periphery of the largerpart of the bushing instead of on the smaller diameter thereof, so'thatthe shoulder does not bear against the bearing and so that the bearingdoes not-rest firmly on the bushing thereby permitting the roll to moveendwise out of its proper place or the bushing to escape from theinsecure grip of the hearing or the roll or bushing or both to drop downinto the machine and hence prevent its proper working. 7

As shown in said patent, the bearings are mounted on springs 94: or, asis quite usual on a weighted lever which is given a proper detachingmovement, preferably about the axis of roll 87 as in that patent. 7 Myimprovement is intended to overcome these troubles, and it consists,generally speaking, in eliminating the shoulders and in providing meansother than the shoulders for holding the top roll from moving endwise.Thus instead of reducing the diameter of a portion of the bushing toform a shoulder, I provide a bushing or sleeve of proper uniform outsidediameter and of suitable length and properly shaped on its interior tofit on each end of the roll, within which'the roll may rotate and uponwhich the hearing will rest. Thus, it"is more or less immaterial exactlywhere the bearing strikes the bushing. The shoulder having beeneliminated by this construction, I have provided a stop wall at each endof each roll so that the roll may butt against it and the roll will haveno possibility of any sub- V BEARING non ror-nE'raeH ne-noms. V

I porting both the top 1926'. Serial no. 1141,5351

stantial endwise play, andT also close the space at'the side "of thelower roll so that the top roll may not fall through into the machine,all asdescribed below:

My invention will beiunder'stoodby reference'tothe'drawings where it isshown'in' its preferred form.

- "Figure 1 is a plan of a top roll mounting,

showing only the-"forks' 14,'while attached 'I to the lever l l0 asshown in Fig. 2'."

Fig; 2 is a crossfsectionitaken through.

the rolls of Fig. 1, showing means for "sup- V and bottom rolls andomitting any detail of thebottom rolls.

1 1s a portion of the frame of the ma 'chine whi'ch supports a casting 2within which the bottom' rolls 4 are supported.

The casting 2 has mounted upon it'a plate 15, which is bolted thereto bybolts and nuts" '6,--and is not ,further described as it forms" 'no partof my; invention; It'is also. provided with recesses 7 between theportions 11; in

which lie the front top rolls 8 which rest on :the bottom rolls 4: (seeFig. 2). It is provided also with arms 9 which have lateral extensions10 running parallel with the axis of the'top roll, the side wall 120 ofwhich comes close enough to the corresponding bottom roll to prevent thetop roll from falling down into the mechanism below it, if in setting,it should not be held by the bearing.

See Fig. 2 where it will be noted that the space between the loweredgeof the part 120 and the lower roll 4 is not suflicient to allow the-roll8 to fall down'into the machine. It will be understood that there areaseries of these detaching rolls extending the length of the machine andlocated in usual relation to the several nipper frames. Sleeves orbushings 12 fit onto the ends of each topdetachingroll so'that the rollsmay turn therein, these sleeves being of somewhat large peripheraldiam-. eter, approximately that of the diam-- eter ofthe body of thedetaching roll, and it will be noted from Fig. 1 that these sleeves areengaged by the forks 14 on the end of .the levers 140 which correspondswith the spring v in, said patent. The ends of the detaching rollsthemselves abut against the surface 13 of the casting 2 so that they canhave no endwise motion. They are,- however, preferably given anoscillating motion as described in the said patent, about the lowerroll, because they lie in the bearing forks 14 of the arms 140 (see Fig.'2), these arms 140 being given a swing like the arm 97 of the saidpatent in any desired way. This bearing 14, however, 7

"beoause'of the construction of the sleeve 12 which is of uniformdiameter throughout,

may bear upon any portion of the sleeve" Without in any way disarrangingthe operation of the machine, and as the ends of the top roll abut theside Wall 13 of the casting,

"the top roll will be held in 'place without any shoulder, as abovedescribed.

' 'Thefront' top roll-although shown in the bearings is notparticularlydescribed as it vmay be of any usual construction andmounted inany usual way. As shown, it

has. bushings 12 corresponding with the bushin s on the top rolls.

'It will be seen that the top detaching roll in each case turns freelyin its sleeve or bushing and is held against its bottom roll by itsbearing, the bottom rolls being mounted to turn in thecasting 2 asusual. The interior of the bushings 0r sleeves *12 is suitably shapedtofit approximately the ends of the rolls so that the ends of .the rollsmay turn freely in them and the spaces between the opposing surfaces oftwo adjacent castings is such as to alloy the rolls no substantially endplay without preventing their free rotation in their bushing.

2. In a machine of the kind described,

having top rolls and bottom rolls, and'castings spaced apart toformanopening to receive said rolls, a top roll having bushings freelysupported thereonat each end, the opposing surfaces forming the ends ofsaid opening being adapted to engage the ends of said bushings andprevent the endwise motion of said top roll.

3. Ina machine of the kind described comprising a frame and top rollsand bottom rolls, said top rolls having bushings freely supported ontheir ends, said frame comprising means to support said bottom 'rollsand Walls opposite to eachv other and having extensions at right anglesto said walls, the Whole forming recesses to receive the bushings ofsaid top rolls, said extensionsbeing spaced from the adjacent bottomroll a distance less than the diameterof said top roll, whereby said toproll it loose cannot pass by said bottom roll. a p

r .WILLIAM P. HOMANS.

